This might be the default way to use a search engine. Simply enter one or more keywords and the search engine will return all pages that contain either all keywords (AND query) or at least one keyword (OR query).
All articles contain an id (e.g. 240216103). You can find the id above each article. If the article id is present, it´s possible to search the article by id.
3. Phrase search
By default, the search engine searches for exact keywords only. This means that a search for xxxx will not return pages containing the words xxx or xxxyy. However, if you want to search for all words that begin with xxx, you can add an asterisk (*) after the keyword (xxx* instead of xxxx). Of course, you can also put the wildcard in front of a keyword or in the middle of a keyword.
Sometimes you only need results that include an exact phrase. E.g. searching for xxx yyy would also return the page of a yyy xxxx y xxx. To narrow your results, simply put quotation marks around your search term ("xxx yyy" instead of xxx yyy) and the search engine will only return pages that contain the exact phrase.
5. Forcing a keyword
This feature is particularly useful when you are searching for multiple keyword (OR query) but still want ensure that a page contains a certain keyword. To force a keyword, put a plus (+) in front of it (without space). E.g. +keyword.
6. Excluding a keyword
To exclude a keyword, put a minus (-) in front of it. Thus, pages containing this keyword will not be returned. E.g. -keyword.
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